Warmoth Gecko Puzzle

OK........I just picked up an unrouted Warmoth Gecko body. I want this bass to be a 4 string, however, as most of you know, the Geckos are only 5 string and Warmoth won't make me a 4 string neck to fit the body (the necks have a tongue extension due to the angle of where the body meets the neck. Henceforth, I can't just pop a neck in).
Does any body know anyone who will make me this special neck? or does anyone know of a neck like a Brubaker that I can purchase somewhere?
Thanks for the help.